I took a series of images in Saskatchewan last year and was recently able to create a decent panorama with them.
Date: July 12, 2007
Location: Cypress Hills Interprovincial Park, Saskatchewan
Optics: Canon EF 17-40mm f/4L USM
Camera: Canon 20Da on Kenko SkyMemo
Exposures: Seven single RAW light frames of 2 minutes at ISO 800